Weaver Xtreme Theme Support <= 6.2.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via Shortcode

2023-03-11 00:00

István Márton

Strategic Overview

Status

Patched in 6.2.7

Affected PluginWeaver Xtreme Theme Support

Affected Version<= 6.2.5

CVSS6.4Medium

CVECVE-2023-0276

View all Weaver Xtreme Theme Support vulnerabilities

Vulnerability Overview

The Weaver Xtreme Theme Support plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's '[youtube]' and '[vimeo]' shortcodes in versions up to, and including, 6.2.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page

Technical Analysis

REMEDIATION: Update to version 6.2.7, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

https://www.cve.org/CVERecord?id=CVE-2023-0276 https://www.wordfence.com/threat-intel/vulnerabilities/id/7431ee0f-f485-48a4-9cdd-8fb2ac43e216

CVSS Vector

6.4

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityLow
IntegrityLow
AvailabilityNone

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